NEW CORNER DETECTION ALGORITHM BASED ON MULTI-FEATURE SYNTHESIS

Corner detection is a chief step in computer vision. A new corner detection algorithm in planar curves is proposed. Firstly, from the human perception, two key characteristics are given as an amendment of the traditional corner properties. Based on the two properties, the concept of the fuzzy set is introduced into a detection. Secondly, the extracted-formulae of three groups including the features of the corner subject degree are derived. Through synthesizing the features of three groups, the judgments of the corner detection, location, and optimization are obtained. Finally, by using the algorithm the detection results of several examples and feature curves for some interested parts, as well as the detection results for the test images history in references are given. Results show that the algorithm is easily realized after adopting the fuzzy set, and the detection effect is very ideal.

Features of human skin in HSV color space and new recognition parameter

Features of human skin in HSV color space are widely applied in the area of image retrieval based on content. H is selected as the basic recognition parameter because its value has a narrow range for the skin color and can keep stable while the illumination intensity or the curvature of skin surface is changing. Rules of parameters with the change of illumination in HSV color space are studied. It is firstly found that the mean of saturation and value (S+V)/2 can keep stable when the illumination intensity is changed or the skin surface is inflected, and (S+V)/2 changes with skin color, but the tendency of change is contrary to that of H. Therefore, (S+V)/H can be used as a new recognition parameter which can enhance HSV ability to recognize human skin.

Technology Embedded Imagination for Arab Women

With advancing channels of communication easing the availability of technological tools, the young minds of women in the Arabian Peninsula are ready to adopt forthcoming challenges. The embrace of storytelling in the digital realm by these young minds reflects the interplay of traditional culture, western modernism, and changes brought about by media industries. These women have adopted and used new media as a vehicle to maneuver their interesting and fresh ideas and have seen the rectilinear screen of a computer as an exit through which to come out and say something to the masses. The thinking methodology has culminated in pragmatic and dynamic visuals in order to celebrate, inform, and create awareness about the issues that they see in the region and among the people. With this freedom of expression, they are creating a new visual culture and transforming themselves into a meaningful workforce. With emerging technological tools, they blend intuitive, pragmatic, emotional, and contextual imagination with a highly-sophisticated production pipeline in order to incorporate the challenges of synthesizing ＂dialect＂ and ＂codes＂ that have traditionally been segregated in the culture. Their work is an amalgamation of arts/design, animation, life footage, and meaningful communication. With cyclical evaluation, they entwine the two elements, creativity, and technicality with massive exposure of Digital Assists Management （DAM）. This paper explains how current technological tools and contextualized teaching instructions foster meaningful content with the elicitation and mergence of Arab anthropological characteristics.

信号交叉口自动驾驶左转车辆类人化全局运动轨迹规划

为了提高信号交叉口自动驾驶车辆左转运动规划的适应性、鲁棒性与类人化程度,提出一种考虑多目标需求的自动驾驶类人化全局运动规划方法。首先,基于西安市北大街信号交叉口规格构建结构化场景,结合车辆运动学模型与道路几何规格定义自动驾驶车辆规范化行驶安全域和车辆运动参数约束条件;其次,根据信号灯状态、道路限速与车辆性能约束制定上游阶段车辆不停车通行规则,以行驶安全、燃油消耗、通行效率与驾驶舒适度作为目标性能函数,构建类人化全局多目标优化模型,通过人类驾驶的车辆预转弯行为耦合上游阶段与转弯阶段;再次,针对非线性运动规划模型变量与约束规模化问题,采用粒子群算法与全联立正交配置有限元方法求解不同阶段车辆运动轨迹的最优解;最后,试验建立Prescan与MATLAB/Simulink联合仿真平台,从多目标性能、适应性以及合理性方面验证该模型的综合性能。结果表明:在以信号灯状态和车辆初速度为变量建立的12种工况下,该模型与人类驾驶车辆、混合运动规划模型相比,平均可分别节省燃油消耗63.7%和29.5%,平均通行延时分别降低3、0.9 s,且轨迹曲率更平缓,最大横向加速度与方向盘转角平方和的平均值最小,证明该模型的多目标性能更好;在以路缘石半径与车道数目为变量建立的7种交叉口规格工况下,所提出模型的车辆轨迹平滑,轨迹安全域边界距离始终大于1.4 m,曲率变化符合期望且峰值小于0.22 m,说明该模型具有较好的适应性;在自由/固定终端时刻条件下,该模型规划的车辆空间路径、速度、曲率及航向角的变化与目标权重变化保持一致,验证了模型的合理性。

The Empirical Guidance in The Vanity of Human Wishes

This paper looks into Samuel Johnson＇s famous poem The Vanity of Human Wishes： The Tenth Satire Imitated （1903）. For centuries, the poem is under hot discussion for its form, tone, theme, and even the imitated style and holds well its position as Johnson＇s greatest poem. Based on the former criticism but avoiding the detailed investigation into thematic concern and stylistic features, the paper pays more attention to Johnson＇s instructive purpose of literary creation and argues that as an observant poet of life, Johnson aims to provide empirical guidance to the reader and human beings and thereby distributes some instructions implicitly through the poetic depiction of human experiences.

Machine-learning-aided precise prediction of deletions with next-generation sequencing

When detecting deletions in complex human genomes,split-read approaches using short reads generated with next-generation sequencing still face the challenge that either false discovery rate is high,or sensitivity is low.To address the problem,an integrated strategy is proposed.It organically combines the fundamental theories of the three mainstream methods(read-pair approaches,split-read technologies and read-depth analysis) with modern machine learning algorithms,using the recipe of feature extraction as a bridge.Compared with the state-of-art split-read methods for deletion detection in both low and high sequence coverage,the machine-learning-aided strategy shows great ability in intelligently balancing sensitivity and false discovery rate and getting a both more sensitive and more precise call set at single-base-pair resolution.Thus,users do not need to rely on former experience to make an unnecessary trade-off beforehand and adjust parameters over and over again any more.It should be noted that modern machine learning models can play an important role in the field of structural variation prediction.

Magnetic Effects in Brain Chemistry

Abstract： Chemistry of the human brain has two components--the basic chemistry common to all mammals and chemistry of thinking inherent to man. The authors proposed a mechanism of induction and thermodynamic features of the brain. The authors offered the mechanisms of the work RAM （physical） and permanent （chemical）, the brain＇s memory, including the model of nonlocal quantum correlations.

Physical characteristics of Chinese Hakka

Using standard and internationally validated methods,86 anthropologic characteristics were determined in 650 male(305 from urban areas and 345 from rural areas) and 704 female(331 from urban areas,373 from rural areas) Chinese Hakka adults living in Guangdong and Jiangxi.The data were used to calculate 24 anthropologic indices,which were analyzed statistically.The physical characteristics of Hakka subjects were analyzed and compared with reference ethnic data.There were four main findings of this study.First,a small proportion of Hakka adults had an eye fold on the upper eyelid,but a large proportion had a mongoloid fold.The eye slits were narrow in most adults,had a medium nasal root height and straight bridges,and most of the external angles were prominent.The nasal base was upturned in most men.The distributions of the three types of nasal base in women were similar.The proportions of subjects with middle and high alae nasi heights were high and similar.Males with a maximum nostril diameter were mostly classified as transverse and oblique,while many women were classified as transverse and had relatively wide alae nasi.The round lobe type was the most common.Upper lip skin height was mostly classified as medium.Lips were classified as thin.The hair was black,eyes were brown,and the skin was yellowish.Second,the head length was long in male Hakka.The minimum frontal breadth,face breadth,lip height,and interocular breadth were similar to those of North-Asian populations.Meanwhile,head breadth,morphological facial height,nose breadth,mouth breadth,and nose height were similar to those of South-Asian populations.Head length was long in female Hakka.The minimum frontal breadth,face breadth,lip height,and interocular breadth were similar to those of North-Asian populations.Head breadth,nose breadth,and mouth breadth were similar to those of South-Asian populations.Third,the stature of male and female Hakka in urban and rural areas was classified as medium.The proportions of male and female Hakka classified as mesocephaly(length-breadth index of the head),hypsicephalic type,metriocephalic type(breadth-height index of the head) mesorrhiny,long trunk,subbrachyskelic type,broad shoulder breadth,and narrow distance between iliac crests were higher than those of other types.Finally,principal component analyses showed that the physical characteristics of Hakka were between those of South-Asian and North-Asian ethnic populations,but were generally closer to those of North-Asian populations in China.

New fossils of the Early Pleistocene Equus huanghoensis(Equidae,Perissodactyla)from Nihewan in Hebei Province of China

This paper describes new fossils of Equus huanghoensis from an Early Pleistocene bed in Nihewan, Hebei Province, which confirms the classification of E. huanghoensis by Chinese researchers. The new fossils include a relatively complete male skull and mandible with all upper and lower dentition, a broken female skull with fragment of mandible and a broken Mc III of Equus sp. The fossils were collected from the Yangshuizhan site of Nihewan. The age of the formation is about 1.6 Ma. The new materials verify some classification characteristics based on teeth published in previous descriptions. These characteristics include large teeth size, short protocone, and tilted protoloph and metaloph. We have added to these characteristics of large skull size, a developed protuberantia supramagna, pentagonal nuchal side, weak Pli cabaline, simple enamel plications; a series of new characteristics strikingly different from the other Equus horses. The broken Mc III is similar to Equus qingyangensis from Qingyang, Gansu.

The structural characteristics and climatic and human impacts of deciduous oak forests in China

Deciduous oak forest is one of the typical vegetation types in temperate and subtropical mountain zones in China.However,the patterns and determinants of the structural characteristics of these forests remain poorly understood.We investigated 682 oak forest plots across China to characterize the community structures of the oak forests and analyze the underlying factors controlling their spatial patterns.Across all plots,the overall mean values were 13.7 cm,10.0 m,1468 stems/ha and 24.3 m^(2)/ha for the diameter at breast height(DBH),height,stem density and total basal area(TBA)of trees,respectively.The average species richness was 6 species/600 m^(2),10 species/100 m^(2) and 4 species/1 m^(2) for the tree,shrub and herb layers,respectively.As latitude increased,the mean tree height,stem density,TBA,tree species richness and shrub species richness decreased,and the mean DBH did not show a significant trend,while species richness of herbs increased significantly.Climatic and anthropogenic variables could explain more variations in mean DBH,mean tree height,TBA,tree species richness,shrub species richness than those in stem density and herb species richness.Further analysis showed that precipitation-related climatic factors were major factors shaping the spatial patterns of community structures.Our findings provide a basis for recognizing the biogeographic patterns of oak forest structures and their responses to global change in China.